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CN1255292C - Light-sensitive sensor unit, especially for automatic switching of lighting device - Google Patents

Light-sensitive sensor unit, especially for automatic switching of lighting device Download PDF

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Publication number
CN1255292C
CN1255292C CNB008104999A CN00810499A CN1255292C CN 1255292 C CN1255292 C CN 1255292C CN B008104999 A CNB008104999 A CN B008104999A CN 00810499 A CN00810499 A CN 00810499A CN 1255292 C CN1255292 C CN 1255292C
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Prior art keywords
sensor unit
sensor
light
sensors
optical conductor
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Expired - Fee Related
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CNB008104999A
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CN1361732A (en
Inventor
诺贝特·奥格
布鲁诺·霍达普
赖纳·平特卡
汉斯·迈尔
亨利·布利茨克
曼弗雷德·布尔卡特
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Robert Bosch GmbH
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Robert Bosch GmbH
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Publication of CN1361732A publication Critical patent/CN1361732A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
    • B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
    • B60Q1/14—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
    • B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
    • B60Q1/14—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means
    • B60Q1/1415—Dimming circuits
    • B60Q1/1423—Automatic dimming circuits, i.e. switching between high beam and low beam due to change of ambient light or light level in road traffic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
    • B60Q2300/30—Indexing codes relating to the vehicle environment
    • B60Q2300/31—Atmospheric conditions
    • B60Q2300/314—Ambient light
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
    • B60Q2300/30—Indexing codes relating to the vehicle environment
    • B60Q2300/33—Driving situation
    • B60Q2300/332—Driving situation on city roads
    • B60Q2300/3321—Detection of streetlights
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
    • B60Q2300/30—Indexing codes relating to the vehicle environment
    • B60Q2300/33—Driving situation
    • B60Q2300/337—Tunnels or bridges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
    • B60Q2300/40—Indexing codes relating to other road users or special conditions
    • B60Q2300/42—Indexing codes relating to other road users or special conditions oncoming vehicle
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S362/00—Illumination
    • Y10S362/802—Position or condition responsive switch

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)

Abstract

Light-sensitive sensor unit, especially for the automatic switching of illuminating equipment, preferably in motor vehicles, which includes at least two light-sensitive sensors, at least a first sensor detecting global lighting conditions and a second sensor detecting the light conditions in predetermined directions. For this purpose, all light-conducting elements allocated to the sensors are to be connected in one piece as a light-conducting member and integrated into the light-conducting member.

Description

光敏型传感器单元，特别是用于自动开关照明装置Light-sensitive sensor units, especially for automatic switching of lighting installations

技术领域technical field

本发明涉及一种光敏型传感器单元，特别是用于在汽车中自动地开关照明装置。The invention relates to a photosensitive sensor unit, in particular for the automatic switching of lighting in motor vehicles.

背景技术Background technique

由DE 19523262.3公开了一种这样的传感器单元，它包括一个全局传感器和一个定向传感器，通过它们感测汽车外部的光照情况。该传感器单元与分析装置连接，在该分析装置中根据该传感器单元的信号求出，在汽车周围环境的当前光照情况下是否要求改变照明装置的开关状态。这种已知传感器单元尽管允许自动开关照明装置，但其由于包括全局和定向传感装置而具有多个构件，这使得成本明显提高，并且调整费事。A kind of such sensor unit is disclosed by DE 19523262.3, and it comprises a global sensor and an orientation sensor, by them sensing the light situation of vehicle exterior. The sensor unit is connected to an evaluation device, in which it is ascertained from the signal of the sensor unit whether a change in the switching state of the lighting system is required in the current light situation of the vehicle surroundings. Although this known sensor unit permits automatic switching of the lighting, it has a plurality of components due to the global and directional sensor system, which significantly increases costs and requires complex adjustments.

发明内容Contents of the invention

按照本发明，提出了一种光敏型传感器单元，该传感器单元包括至少两个光敏型传感器，为这些传感器对应设置了光导元件，这些光导元件具有可预先确定的接收特性，其中，至少一个第一传感器探测全局光照情况，至少一个第二传感器探测预先确定的方向上的光照情况，其中，所述与这些传感器对应设置的光导元件一件式地连接成一个光导体。According to the invention, a light-sensitive sensor unit is proposed, which sensor unit comprises at least two light-sensitive sensors, for which light-guiding elements are correspondingly arranged, and these light-guiding elements have predeterminable reception characteristics, wherein at least one first The sensors detect global illumination conditions, and at least one second sensor detects illumination conditions in a predetermined direction, wherein the light guide elements corresponding to these sensors are integrally connected to form a light conductor.

本发明装置的优点是，通过将全局传感装置和定向传感装置集成，提供一种简单、紧凑、坚固耐用、易于安装且在实践中不需要调整的传感器单元。此外，本发明装置只包括最少量的构件，这使得在扩展功能性的情况下可以实现简单、低成本的产品。因为在汽车风挡玻璃上阻碍视线的零部件应保持小的尺寸，由于集成全局传感装置和定向传感装置而实现的小的尺寸是另一个很大的优点。An advantage of the device of the invention is that, by integrating the global sensing means and the orientation sensing means, a sensor unit is provided which is simple, compact, robust, easy to install and requires no adjustments in practice. Furthermore, the device according to the invention comprises only a minimum number of components, which enables a simple, low-cost production with expanded functionality. Since components that obstruct the view on the windshield of the vehicle should be kept small, the small size achieved due to the integration of global and orientation sensors is another great advantage.

通过下面的措施可以有利地扩展上述方案的传感器单元。The sensor unit of the concept described above can advantageously be expanded by the following measures.

至少三个传感器探测来自预先确定的方向的光线，通过此，可以感测汽车前面一个宽广的范围。如果至少一个传感器安置在行驶方向上、另外两个传感器在两侧安置在从行驶方向偏转开一个角度α的角度上，则在汽车前面得到一个宽的感测锥形区，从而也可以感测还没有处于行驶方向上的驶入隧道的情况并相应地控制照明装置。At least three sensors detect light from predetermined directions, through which a wide area in front of the car can be sensed. If at least one sensor is arranged in the direction of travel and two other sensors are arranged on both sides at an angle α deflected from the direction of travel, a wide sensing cone is obtained in front of the vehicle, so that the sensor can also be sensed The situation of entering a tunnel is not yet in the direction of travel and the lighting is controlled accordingly.

有利的是，探测预先确定的方向上的光照情况的至少一个传感器与沿汽车行驶方向的一条直线包围一个角度α。It is advantageous if at least one sensor which detects the light situation in a predetermined direction encloses an angle α with a straight line in the direction of travel of the motor vehicle.

有利的是，光导元件相互过渡到对方中。It is advantageous if the light guide elements merge into each other.

有利的是，这些光导元件的感光锥形区是重叠的。Advantageously, the photosensitive tapered regions of the light guiding elements overlap.

有利的是，传感元件作为区别日光和人工照明的传感元件构成。Advantageously, the sensor element is designed as a sensor element that distinguishes between sunlight and artificial lighting.

有利的是，分析装置作为区别日光和人工照明的分析装置构成。Advantageously, the evaluation device is designed as an evaluation device that distinguishes between sunlight and artificial lighting.

如果定向传感器具有透镜式的元件，它们也可以相互过渡到对方中，该感测锥形区可以个别地与汽车生产者的愿望协调一致。If the orientation sensor has lens-like elements, which can also merge into one another, the sensing cone can be individually adapted to the wishes of the vehicle manufacturer.

通过将传感器单元的光导体集成在一个下雨传感器装置的光导体内，可以节约其它构件，并且进一步减少风挡玻璃上阻碍视线的零部件数量，特别是如果按照多组分注塑法(Spritzgussverfahren)将该光导体与下雨传感器光导体和耦合介质一起制成。By integrating the photoconductor of the sensor unit in the photoconductor of a rain sensor device, other components can be saved and the number of components that obstruct the view on the windshield can be further reduced, especially if the multi-component injection molding method (Spritzgussverfahren) The photoconductor is made together with the rain sensor photoconductor and coupling medium.

附图说明Description of drawings

在附图1和2中示出本发明的一个实施例，在下面的描述中进一步解释。图示为：An embodiment of the invention is shown in Figures 1 and 2 and is further explained in the following description. The picture shows:

图1一个本发明传感器单元的剖视图，Fig. 1 is a sectional view of a sensor unit of the present invention,

图2以立体视图示出集成在一个下雨传感器光导体中的所述传感器单元的视图。FIG. 2 shows a perspective view of the sensor unit integrated in a rain sensor light guide.

具体实施方式Detailed ways

图1示出一个本发明传感器单元10，它安置在一个窗玻璃11、特别是一个汽车风挡玻璃上。传感器单元10由多个传感器12组成，其中每个传感器12包括一个传感元件13和一个光导元件14，14a。但在这里两个光导元件14共同使用一个传感元件13，从而得到三个光敏型传感元件13和四个光导元件14和14a。在其上安置光导元件14，14a的光导体由一个至少部分地可透光的板制成，该板具有圆柱形的成形部，这些圆柱形成形部被透镜形的圆形件封闭。这些圆柱形成形部与透镜形的圆形件分别形成一个光导元件14，14a。如果平行光线沿该圆柱形成形部中轴线穿过透镜形圆形件，则得到一个焦点f，它代表光导元件14，14a的焦距的特征。FIG. 1 shows a sensor unit 10 according to the invention which is mounted on a window pane 11, in particular a motor vehicle windshield. The sensor unit 10 consists of a plurality of sensors 12, wherein each sensor 12 comprises a sensor element 13 and a light-conducting element 14, 14a. Here, however, two light-guiding elements 14 share one sensor element 13 , so that three light-sensitive sensor elements 13 and four light-guiding elements 14 and 14 a are obtained. The light guide, on which the light guide elements 14 , 14 a are arranged, is produced from an at least partially light-permeable plate which has cylindrical formations which are closed by lens-shaped circular parts. These cylindrical formations and the lens-shaped circular part each form a light-guiding element 14 , 14 a. If parallel rays pass through the lens-shaped circle along the central axis of the cylindrically shaped part, a focal point f is obtained which is characteristic of the focal length of the light-guiding element 14, 14a.

传感元件13分别安置在光导元件14的焦点f与光导元件14本身之间。由此，得到在行驶方向上朝向前方的感光锥形区，它允许在预先确定的方向上进行探测。通过相应的从属光导元件14的焦点f与光敏型传感元件13之间的距离可以调整该感光锥形区的张开角度。The sensor elements 13 are each arranged between the focal point f of the light-guiding element 14 and the light-guiding element 14 itself. This results in a light-sensing cone pointing forward in the direction of travel, which allows detection in a predetermined direction. The opening angle of the photosensitive cone region can be adjusted by the distance between the focal point f of the corresponding subordinate photoconductive element 14 and the photosensitive sensor element 13 .

一个分析装置15根据来自传感元件13的信号控制一个照明装置16的开关。这些传感元件13可以共同安装在一个薄板17上并且优选这样配置，使它们能够区别日光和人工照明，以阻止在人工光照情况下、如在隧道中关闭开关。这可以通过适当选择传感元件13的灵敏度范围实现。还可以这样选择灵敏度范围，使得可以识别例如气体放电灯的确定的光谱范围或特征线，从而可以控制汽车远光灯和照明灯。An evaluation device 15 controls the switching of a lighting device 16 as a function of the signal from the sensor element 13 . The sensor elements 13 can be mounted together on a thin plate 17 and are preferably configured in such a way that they are able to distinguish between daylight and artificial lighting in order to prevent switching off in artificial lighting situations, eg in tunnels. This can be achieved by suitable selection of the sensitivity range of the sensing element 13 . It is also possible to select the sensitivity range in such a way that, for example, certain spectral ranges or characteristic lines of gas discharge lamps can be detected, so that high beams and headlights of vehicles can be controlled.

在该定向传感装置旁边，至少一个光导元件14a非必要地在行驶方向上对准前方。该至少一个光导元件14a的感光锥形区具有一个很大的张开角度并且感测汽车外部的全局的光照情况。Next to this orientation sensor device, at least one light guide element 14 a is optionally oriented forward in the direction of travel. The light-sensing cone of the at least one light-conducting element 14 a has a large opening angle and senses the global lighting situation outside the vehicle.

全部光导元件14，14a，特别是定向传感装置和全局传感装置的传感器，一件式地连接成一个光导体18。该光导体18例如可以作为用一种透明的或可穿透紫外线的塑料制造的注塑件制成。同样可以将光导体18用一种染色的或具有涂层的塑料制成，该塑料保持了一种可能希望的过滤器作用，以影响传感器的灵敏度范围。该光导体通过一个耦合介质19、例如一个硅酮垫压在窗玻璃上。耦合介质19阻止空气进入窗玻璃11与光导体18之间，这种空气进入会导致所不希望的控制。此外，耦合介质19可以按照多组分注塑法直接在制造光导体18时设置在其上。All light guide elements 14 , 14 a , in particular the sensors of the orientation sensor and the global sensor, are connected in one piece to form a light guide 18 . The light guide 18 can be produced, for example, as an injection-molded part made of a transparent or UV-permeable plastic. The light guide 18 can likewise be produced from a colored or coated plastic which retains a possibly desired filter effect in order to influence the sensitivity range of the sensor. The light guide is pressed against the window pane via a coupling medium 19 , for example a silicone pad. The coupling medium 19 prevents the ingress of air between the window pane 11 and the light conductor 18 , which would lead to undesired control. Furthermore, the coupling medium 19 can be applied directly thereon during the production of the light guide 18 according to the multi-component injection molding method.

Claims (14)

1. light-sensitive sensor unit (10), this sensor unit comprises at least two light-sensitive sensors (12), for these sensors (12) correspondence is provided with photocon (14,14a), these photocons (14,14a) having can predetermined receiving feature, wherein, at least one first sensor (12) is surveyed the global illumination situation, at least one second sensor (12) is surveyed the light conditions on the predetermined direction, it is characterized in that, and the photocon of described and the corresponding setting of these sensors (12) (14,14a) connect into an optical conductor (18) single type.
2. sensor unit as claimed in claim 1 is characterized in that, at least three sensors (12) are surveyed the light from predetermined direction.
3. sensor unit as claimed in claim 1 or 2 is characterized in that, at least one has the travel direction of the sensor (12) of predetermined direction to prospective vehicle.
4. sensor unit as claimed in claim 1 or 2 is characterized in that, at least one sensor (12) of surveying the light conditions on the predetermined direction surrounds an angle [alpha] with straight line along vehicle traveling direction.
5. sensor unit as claimed in claim 4 is characterized in that, each follows a straight line angle [alpha] of encirclement of sailing the direction sensing and have a shared Photosensitive sensitive member (13) with one two sensors (12) in both sides.
6. sensor unit as claimed in claim 1 or 2 is characterized in that, and photocon (14,14a) carry out the transition among the other side mutually.
7. sensor unit as claimed in claim 1 or 2 is characterized in that, (14, sensitization tapered zone 14a) is overlapping to these photocons.
8. sensor unit as claimed in claim 1 or 2 is characterized in that, sensitive member (13) constitutes as difference daylight and artificially lighting sensitive member (13).
9. sensor unit as claimed in claim 1 or 2 is characterized in that, analytical equipment (15) constitutes as difference daylight and artificially lighting analytical equipment (15).
10. sensor unit as claimed in claim 1 or 2 is characterized in that, optical conductor (17) is integrated in the optical conductor of a rain sensor device.
11. sensor unit as claimed in claim 8 is characterized in that, optical conductor (17) is made according to the multi component injection molding method.
12. sensor unit as claimed in claim 1 or 2 is characterized in that, this sensor unit is to be used for the sensor unit of switch lighting device automatically.
13. sensor unit as claimed in claim 1 or 2 is characterized in that, this sensor unit is the sensor unit that is used for automobile.
14. sensor unit as claimed in claim 8 is characterized in that, optical conductor (17) is made with optical conductor and a kind of couplant of rain sensor according to the multi component injection molding method.
CNB008104999A 1999-07-17 2000-06-15 Light-sensitive sensor unit, especially for automatic switching of lighting device Expired - Fee Related CN1255292C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19933642A DE19933642A1 (en) 1999-07-17 1999-07-17 Photosensitive sensor unit, in particular for the automatic switching of lighting devices
DE19933642.3 1999-07-17

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CN1361732A CN1361732A (en) 2002-07-31
CN1255292C true CN1255292C (en) 2006-05-10

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EP (1) EP1200286B1 (en)
JP (1) JP2003504270A (en)
KR (1) KR100726106B1 (en)
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AU (1) AU771944B2 (en)
BR (1) BR0012535B1 (en)
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AU771944B2 (en) 2004-04-08
EP1200286A1 (en) 2002-05-02
US6802631B1 (en) 2004-10-12
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WO2001005625A1 (en) 2001-01-25
DE19933642A1 (en) 2001-03-08
KR100726106B1 (en) 2007-06-12
JP2003504270A (en) 2003-02-04
MY126620A (en) 2006-10-31
AU6260200A (en) 2001-02-05
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BR0012535B1 (en) 2010-10-05
EP1200286B1 (en) 2012-09-05

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